ESR identification of radiation-induced oxygen vacancy centers in paratellurite

A. Watterich, R. H. Bartram, O. R. Gilliam, L. A. Kappers, G. J. Edwards, I. Földvári, R. Voszka

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

The ESR spectrum of paratellurite (-TeO2) exposed to 1-MeV electron irradiation reveals a single spin-(1/2) defect in eight inequivalent sites with an anisotropic g value close to the free-electron value. Principal g values are 2.01050.0005, 1.9705 0.0005, and 1.9358 0.0005. Resolved hyperfine structure is attributed to magnetic isotopes of tellurium in seven different sites neighboring each defect site. The g-value anisotropy together with the hyperfine structure suggest a positively charged, oxygen-vacancy model (V0(bu) with properties intermediate between those of the E1 center in SiO2 and the F+ center in alkaline-earth oxides.

Original languageEnglish
Pages (from-to)2533-2537
Number of pages5
JournalPhysical Review B
Volume32
Issue number4
DOIs
Publication statusPublished - 1985

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Oxygen vacancies
hyperfine structure
Paramagnetic resonance
Tellurium
alkaline earth oxides
Radiation
Defects
Electron irradiation
defects
oxygen
electron irradiation
radiation
tellurium
color centers
Isotopes
Oxides
free electrons
Anisotropy
isotopes
Earth (planet)

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

ESR identification of radiation-induced oxygen vacancy centers in paratellurite. / Watterich, A.; Bartram, R. H.; Gilliam, O. R.; Kappers, L. A.; Edwards, G. J.; Földvári, I.; Voszka, R.

In: Physical Review B, Vol. 32, No. 4, 1985, p. 2533-2537.

Research output: Contribution to journalArticle

Watterich, A. ; Bartram, R. H. ; Gilliam, O. R. ; Kappers, L. A. ; Edwards, G. J. ; Földvári, I. ; Voszka, R. / ESR identification of radiation-induced oxygen vacancy centers in paratellurite. In: Physical Review B. 1985 ; Vol. 32, No. 4. pp. 2533-2537.
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